DE102022118953B4 - Skipping rope with rope couplings - Google Patents

Abstract

The invention relates to a skipping rope (20) with two handles (12a, 12b) and a rope (14) which can be connected via two couplings (20), characterized in that each coupling (20) has a male (22) and a female (36). Coupling element, the male coupling element (22) having a central pin (24) which has two opposing locking projections (30a, 30b), the female coupling element (36) having a cylindrical pin receptacle (42) which fits the pin (24). with a wall which has two opposite longitudinal grooves (50a, 50b) for the locking projections (30a, 30b) during a pin insertion process, a bottom (46) of the pin receptacle (42) being designed to be movable by spring force, and a stop ( 44) for the pin (24), whereby in the cylindrical pin receptacle (42) at a depth at which the locking projections (30a, 30b) are located when the pin (24) rests on the stop (44), from the longitudinal grooves ( 50a, 50b) lead away circumferential grooves (52a, 52b) which extend in the circumferential direction, the ends of which merge into two opposite blind grooves (54a, 54b) which run parallel to the longitudinal grooves (50a, 50b). This design enables a very simple, quick and safe Assembly of a rope (14) by inserting the pin (24) of the male coupling element (22) into the cylindrical pin receptacle (42) and pushing it forward against spring force and then turning it in the circumferential direction after reaching a stop. Care must be taken to ensure that the locking projections in the pin are aligned with the longitudinal grooves in the female coupling element and can be moved along them. A quick and safe coupling and uncoupling of the rope (16) and handles (12a, 12b) is possible.

Description

The invention relates to a skipping rope with two handles and a rope that can be connected via two couplings.

It is known in the prior art to design skipping ropes so that they can be dismantled, i.e. to separate the actual rope from the two handles using couplings. On the one hand, this serves to store the skipping rope more compactly, but on the other hand, it also means that if the actual rope wears out, it can be replaced without having to replace the entire skipping rope with the handles, as the handles are significantly larger due to the use of ball bearings and high-quality materials are more expensive to purchase than the actual rope. It is also desirable to use ropes of different lengths or weights, whether for different people or for different exercises. The weights of ropes used vary between 50g and more than 1000g.

DE 20 2013 104 944 U1 , DE 197 07 373 C1 , the DE 689 03 350 T2 , DE 296 07 995 U1 , US 7,462,140 B1 and US 2022/0072356 A1 disclose dismountable skipping ropes with two handles and a rope that can be connected via two couplings.

The object of the invention is to provide a skipping rope with a structurally robust, simple, quickly and safely installed option for removing or connecting the rope.

The invention results from the features of claim 1. Advantageous developments and refinements are the subject of the dependent claims. Further features, possible applications and advantages of the invention result from the following description and the explanation of exemplary embodiments of the invention, which are shown in the figures.

The object is achieved according to claim 1 in that each coupling has a male and a female coupling element, the male coupling element having a central pin which has two opposing locking projections, the female coupling element having a cylindrical pin receptacle with a wall which accommodates the pin has, which has two opposite longitudinal grooves for the locking projections during a pin insertion process, a bottom of the pin receptacle being designed to be movable by spring force, and a stop for the pin, wherein in the cylindrical pin receptacle at a depth at which the locking projections are located, When the pin is in contact with the stop, lead away from the longitudinal grooves circumferential grooves extending in the circumferential direction, the ends of which merge into two opposite blind grooves that run parallel to the longitudinal grooves.

This design enables very simple assembly of a rope by inserting the pin of the male coupling element into the cylindrical pin receptacle and pushing it forward until the tip reaches the bottom of the pin receptacle. Care must be taken to ensure that the locking projections in the pin are aligned with the longitudinal grooves in the female coupling element and can be moved along them. The male coupling element is then pushed further against spring force a distance up to a stop and then rotated in the circumferential direction relative to the female coupling element until a stop is reached again. Then the male coupling element is released and by the restoring force of the spring under the floor, the locking projections are inserted into the bag grooves and are pressed along the bag grooves against their ends by the pressure of the spring. The coupling ensures a simple and secure connection that cannot become disengaged by accident or due to the forces that occur when using the skipping rope.

Dismantling the coupling is just as easy by pushing the two coupling elements against each other up to a first stop, then moving them against each other in the circumferential direction up to a second stop and then pulling them apart again. The locking projections move along the opposite path from the blind grooves into the circumferential grooves and from there into the longitudinal grooves before they disengage. The two coupling elements are separated from each other.

According to an advantageous embodiment of the invention, the pin has a shoulder with a front pin section of smaller diameter and a rear pin section of larger diameter, the stop being designed as a ring section which has a bore diameter which is adapted for the passage of the front pin section.

According to an advantageous development of this embodiment, the bottom of the pin holder can be pressed from below against the ring section by means of a spring.

According to an advantageous development of the invention, the locking projections are designed as ends of a cross bolt pressed into a transverse bore of the pin. This training is structurally easy to produce.

According to an advantageous development of this embodiment, the ends of the cross bolt are rounded like a dome in order to avoid injuries.

According to an advantageous development of the invention, the circumferential grooves have an extension of 45° to 120°, preferably 90° in the circumferential direction. This area ensures a reliable coupling process because the user has to move the two coupling elements against each other a certain distance in the circumferential direction before a stop occurs, thus avoiding accidental release of the coupling during the closing process.

According to an advantageous development of the invention, through holes are arranged at the end of the blind grooves, through which the locking projections are visible in the locked state. This makes it easy for the user to visually verify that the coupling is in the locked state.

Further advantages, features and details emerge from the following description, in which at least one exemplary embodiment is described in detail - if necessary with reference to the drawings. Identical, similar and/or functionally identical parts are provided with the same reference numerals.

• 1: eine Ansicht eines Springseils;
• 2: eine perspektivische Darstellung einer Kupplung;
• 3: eine perspektivische Darstellung eines weiblichen Kupplungselementes;
• 4: eine perspektivische Schnittdarstellung des weiblichen Kupplungselementes;
• 5: eine perspektivische Darstellung der Kupplung im montierten Zustand.

Show it:

• 1 : a view of a skipping rope;
• 2 : a perspective view of a clutch;
• 3 : a perspective view of a female coupling element;
• 4 : a perspective sectional view of the female coupling element;
• 5 : a perspective view of the coupling in the assembled state.

1 shows a skipping rope 10 in a disassembled state, essentially consisting of two handles 12a, 12b and a rope 14, at both ends of which first coupling elements 16a, 16b are arranged, which are connected to second coupling elements 18a, 18b for releasably connecting the rope 14 to the two Handles 12a, 12b work together and each form a clutch 20. The second coupling elements 18a, 18b are each mounted in an articulated and rotatable manner via a joint (not shown) and a ball bearing in the relevant handle 12a, 12b. It does not matter to the invention whether the first or second coupling element 16, 18 is a male or female coupling element.

2 shows a perspective view of the coupling 20, comprising a male coupling element 22 (which is therefore the first 16 or second 18 coupling element according to 1 can act). The male coupling element 22 comprises a pin 24, which consists of a front pin section 26 and a rear pin section 28 of larger diameter, between which a shoulder 29 is formed, with two opposing locking projections 30a, 30b being formed in the rear pin section 28, which are preferably dome-shaped are rounded ends of a pin which is press-fitted into a transverse bore of the rear pin section 28. The male coupling element 22 has a channel 31 at the opposite end for the introduction of the rope 14, which is fixed by means of screws which can be screwed through threaded holes 34 and pressed against the end of the rope 14.

The coupling 20 further includes a female coupling element 36 which is in the 3 and 4 is shown in more detail. This essentially consists of an externally cylindrical sleeve 38.

The female coupling element 36 has a cylindrical pin receptacle 42 with a diameter that is slightly larger than the diameter of the rear pin section 28 of the pin 24, so that it can be inserted easily, but is then guided and held with almost no play. The female coupling element 36 also has a rough surface to enable the ropes to be changed quickly without slipping due to sweaty hands. The pin receptacle 42 has a length which is at least equal to the length of the rear pin section 28 and is directed forward or inwards by a molded ring section 44 limited, which has a bore with a diameter that is slightly larger than the diameter of the front pin section 26. Below the ring section 44 there is a base plate 46 which is pressed against the ring section 44 by means of a spring 48, the spring 48 being on the end part is supported.

Returning to the cylindrical pin receptacle 42, this has two opposite longitudinal grooves 50a, 50b, which have a shape which allows the locking projections 30a, 30b to move in when the pin 24 is inserted into the pin receptacle 42. In the 4 The longitudinal groove 50a shown merges into a circumferential groove 52a which runs in the circumferential direction with respect to the central axis of the cylindrical pin receptacle 42 (the counterpart 52b on the other side of the pin receptacle 42 is not shown for reasons of illustration), which is approximately a quarter circle long and merges into a blind groove 54a. There are through holes in the end region of the blind grooves 54a, 54b 56a, 56b, in which the locking projections 30a, 30b can be seen when the clutch 20 is in the locked state.

In order to bring the coupling from the uncoupled to the coupled and locked position, the pin 24 of the male coupling element 22 is inserted into the pin receptacle 42 of the female coupling element 36 and advanced, ultimately against the force of the spring 48, because the front end of the pin 24 the base plate 46 presses down until the shoulder 19 of the pin 24 abuts the ring section 44. When the pin 24 moves, the front pin section 26 passes through the opening of the ring section 44 and is guided by it.

So when the shoulder 29 is attached to the base plate 46 and further axial movement is no longer possible, the two coupling elements 22, 36 are rotated against each other in the circumferential direction, with the locking projections 30a, 30b moving from the longitudinal grooves 50a, 50b into the circumferential grooves 52a, 52b until this movement is also ended by the end of the circumferential grooves 52a, 52b. In this position, the locking projections 30a, 30b can move further into the blind grooves 54a, 54b. Now the user only has to release one of the coupling elements 22, 36, so that the released coupling element 22, 36 pushes the coupling elements 22, 36 axially apart again by the restoring force of the spring 48 until the locking projections 30a, 30b reach the end of the blind grooves 54a , 54b reached. In this locked and secured position, the locking projections 30a, 30b are held by the spring force, so that unwanted decoupling is effectively prevented.

The user can determine the secured position of the clutch 20 by the fact that the locking projections 30a, 30b can be seen through the through holes 56a, 56b.

Decoupling is possible in the reverse sequence of movements. The user pushes the coupling elements 22, 36 against each other until there is resistance, with the locking projections 30a, 30b moving through the blind grooves 54a, 54b to the transition point to the circumferential grooves 52a, 52b. Then the coupling elements 22, 36 are rotated against each other in the opposite direction until there is another stop, with the locking projections 30a, 30b moving through the circumferential grooves 52a, 52b to the transition point to the longitudinal grooves 50a, 50b. In this position, the spring 48 pushes the coupling elements 22, 36 apart and these can be pulled further apart and away from each other.

Although the invention has been illustrated and explained in detail by preferred embodiments, the invention is not limited by the examples disclosed and other variations may be derived therefrom by those skilled in the art without departing from the scope of the invention. It is therefore clear that a large number of possible variations exist. It is also to be understood that exemplary embodiments are truly examples only and should not be construed in any way as limiting the scope, application, or configuration of the invention. Rather, the preceding description and the description of the figures enable the person skilled in the art to concretely implement the exemplary embodiments, whereby the person skilled in the art can make a variety of changes, for example with regard to the function or the arrangement of individual elements mentioned in an exemplary embodiment, with knowledge of the disclosed inventive concept, without To leave the scope of protection, which is defined by the claims and their legal equivalents, such as further explanations in the description.

Reference symbol list

10

Skipping rope

12a,b

Handles

14

Rope

16a,b

first coupling elements

18a,b

second coupling elements

20

coupling

22

male coupling element

24

Pen

26

front pin section

28

rear pin section

29

Paragraph

30a,b

Locking projections

32

channel

34

Threaded holes

36

female coupling element

38

sleeve

40

Final part

42

Pen holder

44

Ring section

46

base plate

48

Feather

50a,b

Longitudinal grooves

52a,b

Circumferential grooves

54a,b

Sack grooves

56a,b

Through holes

Claims (7)

Skipping rope (10) with two handles (12a, 12b) and a rope (14) that can be connected via two couplings (20), characterized in that each coupling (20) has a male (22) and a female (36) coupling element, whereby the male coupling element (22) has a central pin (24) which has two opposing locking projections (30a, 30b), the female coupling element (36) having a cylindrical pin receptacle (42) with a wall which accommodates the pin (24). , which has two opposite longitudinal grooves (50a, 50b) for the locking projections (30a, 30b) during a pin insertion process, a bottom (46) of the pin holder (42) being designed to be movable by spring force, and a stop (44) for the Pin (24), whereby in the cylindrical pin receptacle (42) at a depth at which the locking projections (30a, 30b) are located when the pin (24) rests on the stop (44), from the longitudinal grooves (50a, 50b) Circumferential grooves (52a, 52b) extending in the circumferential direction, the ends of which merge into two opposite blind grooves (54a, 54b) running parallel to the longitudinal grooves (50a, 50b). Jump rope after Claim 1 , characterized in that the pin (24) has a shoulder (29) with a front pin section (26) of smaller diameter and a rear pin section (28) of larger diameter, the stop (44) being designed as a ring section (44). has a bore diameter which is adapted for the passage of the front pin section (26). Jump rope after Claim 2 , characterized in that the bottom (46) of the pin receptacle (42) can be pressed from below against the ring section (44) by means of a spring (48). Skipping rope according to one of the preceding claims, characterized in that the locking projections (30a, 30b) are designed as ends of a cross bolt pressed into a transverse bore of the pin (24). Jump rope after Claim 4 , characterized in that the ends of the cross bolt are rounded like a dome. Skipping rope according to one of the preceding claims, characterized in that the circumferential grooves (52a, 52b) have an extension of 45° to 120°, preferably 90° in the circumferential direction. Skipping rope according to one of the preceding claims, characterized in that through holes (56a, 56b) are arranged at the end of the blind grooves (54a, 54b), through which the locking projections (30a, 30b) are visible in the locked state.

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